package com.imooc.sell.controller;

import com.imooc.sell.VO.ResultVo;
import com.imooc.sell.converter.OrderForm2OrderDTOConverter;
import com.imooc.sell.dto.OrderDTO;
import com.imooc.sell.enums.ResultEnum;
import com.imooc.sell.exception.SellException;
import com.imooc.sell.form.OrderForm;
import com.imooc.sell.service.BuyerService;
import com.imooc.sell.service.OrderService;
import com.imooc.sell.utils.ResultVOUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @author Kelvin
 */
@RestController
@RequestMapping("/buyer/order")
@Slf4j
public class BuyerOrderController {

    @Autowired
    private OrderService orderService;

    @Autowired
    private BuyerService buyerService;

    /** 创建订单. */
    @PostMapping("/create")
    public ResultVo<Map<String,String>> create(@Valid OrderForm orderForm, BindingResult bindingResult){
        if(bindingResult.hasErrors()){
            log.error("[创建订单] 参数不正确,orderForm={}",orderForm);
            throw new SellException(ResultEnum.PARAM_ERROR.getCode(),bindingResult.getFieldError().getDefaultMessage());
        }

        OrderDTO orderDTO = OrderForm2OrderDTOConverter.convert(orderForm);
        if(CollectionUtils.isEmpty(orderDTO.getOrderDetailList())){
            log.error("[创建订单] 购物车不能为空");
            throw new SellException(ResultEnum.CART_EMPTY);
        }
        OrderDTO createResult = orderService.create(orderDTO);
        Map<String,String> map = new HashMap<>();
        map.put("orderId",createResult.getOrderId());
        return ResultVOUtil.success(map);
    }




    /** 订单列表. */
    @GetMapping("/list")
    public ResultVo<List<OrderDTO>> list(@RequestParam("openid") String openid,
                                         @RequestParam(value = "page", defaultValue = "0") Integer page,
                                         @RequestParam(value = "size", defaultValue = "10") Integer size){
        if(StringUtils.isEmpty(openid)){
            log.error("[查询订单列表] openId为空");
            throw new SellException(ResultEnum.PARAM_ERROR);
        }

        PageRequest request = PageRequest.of(page,size);
        Page<OrderDTO> orderDTOPage = orderService.findList(openid,request);
        return ResultVOUtil.success(orderDTOPage.getContent());

    }

    /**
     * 商品详情
     * @param openid
     * @param orderId
     * @return
     */
    @GetMapping("/detail")
    public ResultVo<OrderDTO> detail(@RequestParam("openid") String openid,
                                     @RequestParam("orderId") String orderId){

        OrderDTO orderDTO = buyerService.findOrderOne(openid,orderId);
        return ResultVOUtil.success(orderDTO);

    }

    /**
     * 取消订单
     * @param openid
     * @param orderId
     * @return
     */
    @PostMapping("/cancel")
    public ResultVo cancel(@RequestParam("openid") String openid,
                           @RequestParam("orderId") String orderId){
        buyerService.cancelOrder(openid, orderId);
        return ResultVOUtil.success();
    }



}
